Metallic bed-bottom



J. SEELIG. METALLIC BED BOTTOM.- APPLICATION FILED AUG. re. 1919.

I "1,329,145, Patented Jan. 27, 1920.

3 SHEETS$HEET l-- 7/ J. SEELIG. METALLIC BED BOTTOM. APPLIC AT|0N FILEDAUG. I6. 1919.

Patented Jan. 27, 1920.

lllllllllllllllllllllllllllllllll N N a a l I l I I l I I I l I ll 3SHEETSS HEET 2- SEELIG.

METALLIC BED BOTTOM.

APPLICATION FILED AUG- Nil 9- Patented Jan. 27, 1920.

3 SHEETSSHEET 3- UNITED sawrns PATENT OFFICE.

JOSEPH SEELIG, 0F LEAD, SOUTH DAKOTA.

METALLIC BED-BOTTOM.

Application filed August 16, 1919.

To all whom it may concern:

Be it known that I, JOSEPH SEELIG, a citizen of the United States ofAmerica,-and a resident of Lead, South Dakota, have invented a new anduseful Improvement in Metallic Bed-Bottoms, which invention is fully setforth in the following specification.

This invention relates to improvements in metallic bed-bottoms such asare employed to support the ordinary mattress, and which consist ofupper and lower sustaining frames connected by interposed annularsprings. In bed-bottoms of this character, as heretofore constructed,much trouble has been experienced in providing a cheap, and at the sametime efficient, means for holding the annular springs in their properrelative positions to withstand hard usage. The present invention hasfor its object the provision of .a bed-bottom of this generalconstruction in which cheap and efficient means are employed to sustainthe annular springs in such a way as to withstand hard usage. Suchmeansconsist primarily of a series of spring units interposed between upperand lower frames composed of longitudinal and transverse stays orstrips, with each spring unit comprising nested spring rings angularlydisposed with their upper intersection projected through a locking platewith crossed stays of the upper frame passing between the plate and theprotruding; nesting ring-sections. and their lower intersection securedto the stays of the lower frame. The invention will be describedindetail hereinafter.

While the invention is primarily intended to be used in the constructionof bed-bottoms. and will be so described, yet it is also particularlyadapted to the construction of spring seats such as are used inautomobiles and which are subjected to extremely hard usage. The deviceis also adapted to other obvious purposes not requiring special mention.

In the drawings. in which similar reference characters designatecorresponding parts,

Figure 1 is a plan view of a bed-bottom embodying the invention;

Fig. 2 is a cross-sectional view on the line :2-2 of Fig. 1;

Specification of Letters Iatent.

Patented Jan. 27, 1920.

Serial No. 317,927.

Fig. 3 is a plan view, broken away in part, of a modified form of theinvention;

Fig. 4 is a sectional view on the line ll of Fig. 3;

Fig. 5 is a detail perspective view showing one of the spring units ofFig. 1;

Fig. 6 is a similar view of a modification;

Fig. 7 is a horizontal sectional view of a spring unit showing the ringconnection between the crossed spiral springs shown in Fig. 6;

Fig. 8 is a detail perspective view of another modification of thespring unit.

Referring more particularly to Figs. 1, 2 and 5, the upper sustainingframe comprises the rectangular member 10, the longitudinal stays 11 andthe transverse stays 12, said stays being connected at their ends to therectangular member by the coiled springs 13. The lower sustaining frameis formed by the side stays 14 and the crossstays 15 riveted together,as at 16. The ends 17 of the cross-stays are hook-shaped to fit over theside rails of the bedstead to support the bed-bottom as a whole.

Interposed between the upper and lower sustaining frames are the annularsprings 18 associated in pairs, with the members of each pair nested andangularly disposed to each other. Each pair of associated sprin s isriveted at their lower intersection. as at 19, to one of the cross-stays15 of the lower frame. At their upper intersection. each pair ofassociated sprin s proiects through the circular opening 20 in thelocking plate 21. B tween the locking late and the nest ed sections ofthe ring-springs protruding above the plate. extend the crossedlongitudinal and transverse stays l1 and 12 of the upper sustain ngframe. This interlocking of the nested rin -sprin s. plate and stays inthe upper sustaining frame, and the riveting of the lower intersectingsections of the springs to the stays of the lower sustaining frame.serve to secure the different spring units together in their properrelative positions.

In a bed-bottom so constructed, the annular springs are each permittedto perform its individual function of yielding to pressure and ofreturning to its normal condition when relieved of such pressure, and atthe same time, by the conjoint action of the angularly disposed membersof each pair of associated springs, each member will oppose anyupsetting of the other member. The bed-bottom as a whole will form ayielding support that will give readily to the movement of an occupantof the bed, but will at the same time offer stout resistance to roughusage. By employing the interlocking con nection between the stays ofthe upper sustaining frame and the nested rings, the spring units can besecured together in a cheap and eflicient manner.

In the modification shown in Figs. 3 and 4, the supporting frame is ofsomewhat different construction from that shown in Figs. 1 and 2. Inthis modified form, the sustaining frame comprises a U-shaped member 22for each longitudinal set of spring units. The upright ends of themembers 22 are secured to the rectangular frame In this modifiedconstruction, the bed-bottom is intended to be placed upon the ordinaryslats of a bedstead. In Fig. la mattress is shown in dotted lines.

In the modification shown in Figs. 6 and 7, auxiliary coiled springs 24extend diametrically across the annular springs, the inner ends of thecoiled springs being attached to the ring 25. The spring unit of thisconstruction is particularly adapted to automobile seats. as the coiledsprings 24- add considerably to the resistance of the annular springs tothe sudden jolts and jars imparted to an occupant of the seat in therapid travel of the vehicle over a rough road. Such unit springs couldalso be used to an advantage in bed-bottoms when placed where the bottomis subjected to most strain, as along the side ec ges and in the center.Also, by the use of the coiled springs 24, the annular springs could bemade of lighter material than in the first described embodiment.

The construction of the modification shown in Fig. 8 is substantiallythe same as that shown in Fig. 6, except that, in Fig. 8, the annularsprings are made of spring wire instead of flat spring as in Fig. 6. Inthe springs 26. eyelets 27 are bent to receive the ends of the coiledcross-springs 28.

In the drawings showing the bottom. but few of the spring units, ascompared with the number actually employed in the construction, areshow-n for the sake of clearness in the illustration; the size andnumber of the spring units used in the actual construction of abed-bottom, seat or other embodiment of the invention can be varied tomeet the different requirements. Also, the shape of the locking platemay be either square, round. or other configuration. It is to be notedthat this plate not only serves to lock the spring members and staystogether, but also forms a bearing surface for the mattress or cushionplaced on the bottom.

What is claimed is 1. In a device of the class described, a lower frame,an upper frame having stays extending across the same, annular springsinterposed between the two frames and secured to the lower frame, saidsprings being associated in nested pairs with the members of each pairangularly disposed to each other, an apertured locking plate for eachpair of associated springs having the contacting sections of the nestedsprings protruding through the aperture in said plate, and a stay of theupper frame passing between the locking plate and the contactingsections of the springs protruding through the plate.

2. In a device of the class described, a lower frame, an upper framehaving intersecting stays crossing the same, annular springs interposedbetween the two frames and secured to the lower frame. said springsbeing associated in nested pairs with the members of each pair angularlydisposed to each other, an apertured locking plate for each pair ofassociated springs having the nesting sections of such pair protrudingthrou h the aperture in the plate, and a pair of intersecting stays ofthe upper frame passing in opposite directions between the locking plateand the nesting sections of the annular springs protruding through theplate.

3. In a device of the class described, a 100 spring mechanism comprisingan apertured locking plate, a plurality of nested annular springsangularly disposed to each other with their nested sections protrudingthrough the aperture in the locking plate, 105 an upper stay extendingbetween the locking plate and the nesting sections of the annularsprings projecting through said plate, and a lower stay riveted to thelower crossed sections of the annular springs.

I. In a device of the class described, a spring mechanism comprising anapertured locking plate, a plurality of nested annular springs angularlydisposed to each other with their nested sections protruding 115 throughthe aperture in the locking plate, and a stay extending between thelocking plate and the nesting sections of the annular springs projectingthrough said plate.

5. In a device of the class described, a 120 spring mechanism comprisingan apertured locking plate, a plurality of nested annular springsangularly disposed to each other with their nested sections protrudingthrough the aperture in the locking plate, 125 and a plurality ofcrossed stays extending between the locking plate and the nestingsections of the annular springs projecting through said plate.

6. In a device of the class described, a.

spring mechanism comprising an apertured locking plate, a plurality ofnested annular springs angularly disposed to each other with theirnested sections protruding through the aperture in the locking plate, aplurality of crossed stays extending between the locking plate and thenesting sections of the annular springs projecting through said plate,and coiled springs extending diametrically across the annular springs.

In testimony whereof I have signed this specification.

JOSEPH SEELIG.

